<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport"
        content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <title>primitive_拾取</title>
    <link href="../Build/Cesium/Widgets/widgets.css" rel="stylesheet" />
    <script src="../Build/Cesium/Cesium.js"></script>
    <style>
        html,
        body,
        #cesiumContainer {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
            overflow: hidden;
        }
    </style>

</head>

<body>
    <div id="cesiumContainer"></div>
    <script>
        let osm = Cesium.createOpenStreetMapImageryProvider({
            url: 'https://a.tile.openstreetmap.org/'
        });
        let viewer = new Cesium.Viewer('cesiumContainer', {
            imageryProvider: osm,
            contextOptions: {
                webgl: {
                    alpha: true
                }
            },
            selectionIndicator: false,
            animation: false,  //是否显示动画控件
            baseLayerPicker: false, //是否显示图层选择控件
            geocoder: false, //是否显示地名查找控件
            timeline: false, //是否显示时间线控件
            sceneModePicker: false, //是否显示投影方式控件
            navigationHelpButton: false, //是否显示帮助信息控件
            infoBox: false,  //是否显示点击要素之后显示的信息
            fullscreenButton: false
        });
        //取消双击事件
        viewer.cesiumWidget.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
        //设置homebutton的位置
        Cesium.Camera.DEFAULT_VIEW_RECTANGLE =
            Cesium.Rectangle.fromDegrees(110.15, 34.54, 110.25, 34.56);//Rectangle(west, south, east, north)
        //设置初始位置
        viewer.camera.setView({
            destination: Cesium.Cartesian3.fromDegrees(110.20, 34.55, 3000000)
        });

        //开启深度检测
        //viewer.scene.globe.depthTestAgainstTerrain = true;

        let instance = new Cesium.GeometryInstance({
            geometry: new Cesium.RectangleGeometry({
                rectangle: Cesium.Rectangle.fromDegrees(-100.0, 30.0, -90.0, 40.0),
                vertexFormat: Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
            }),
            id: 'my red rectangle',
            attributes: {
                color: Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.RED)
            }
        });
        let anotherInstance = new Cesium.GeometryInstance({
            geometry: new Cesium.RectangleGeometry({
                rectangle: Cesium.Rectangle.fromDegrees(-80.0, 30.0, -70.0, 40.0),
                vertexFormat: Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
            }),
            id: 'my green rectangle',
            attributes: {
                color: Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.GREEN)
            }
        });

        viewer.scene.primitives.add(new Cesium.Primitive({
            geometryInstances: [instance,anotherInstance],
            appearance: new Cesium.PerInstanceColorAppearance()
        }));

        let handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
        handler.setInputAction(function (movement) {
            let pick = viewer.scene.pick(movement.position);
            if (Cesium.defined(pick) && (pick.id === 'my red rectangle')) {
                alert('Mouse clicked red rectangle.');
            }else if (Cesium.defined(pick) && (pick.id === 'my green rectangle')) {
                alert('Mouse clicked green rectangle.');
            }
        }, Cesium.ScreenSpaceEventType.LEFT_CLICK);



    </script>
</body>

</html>